Thread: Black marks have appeared on goldfish. One has died, others have the marks!!
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Old September 7th 06, 10:25 PM posted to rec.ponds
sean mckinney
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Default Black marks have appeared on goldfish. One has died, others have the marks!!

I recollect black marks developing being a sympyom of an ammoni-x burn
you might want to check the NO2, NO3, NH3 and NH4 readings. Surf those
and take appropriate action




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sean mckinney